You seem to assume that in some fashion, the minorities would be the winners of totalitarian cult's actions. They would not. The minorities would be better off living in a stable, lawful and democratic society, even if it does not try to declare war on the majority.
Russians do not run their country for a century, but yeah, they may respond by not renting you their crappy and overpriced flat.
Have you tried renting an apartment in Moscow without “Slavic” looks?